As far as I know,,,you do have to smog a 1-ton. You don't have to smog a truck that is in excess of 10,001 lbs.
Fletch
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2005 4x4 QC 24V, Predator/Power Puck, 315's Mickey Thompson MTZ, Leveling Kit, Dual Steering Stabilizer, Stainless Gage Insert, muffler MIA, Cobra CB, Limo Tint, Sirius, Dual DVD Players, LED Tails, Tailgate Lock and Whelen strobes.